B12 deficiency causes fatigue, anemia, and neurologic symptoms, and is more common in older adults, vegans, and those with malabsorption conditions
This variety allows individuals to choose the method that works best for them
5A-1MQ-treated mice switched from WD to LD (WD/LD-T) showed a rather reduced relative abundance of Akkermansia compared to vehicle-treated DIO animals switched from WD to LD (WD/LD-V), suggesting a unique microbiome mechanism associated with weight loss in the vehicle-treated group switched from WD to LD compared to the 5A-1MQ-treated group that underwent the same diet switch
Titration: There is generally no need for upward titration with B-complex vitamins as one might do with certain drugs, but if a patient is frail or known to react to injections, the provider may choose to start at a lower dose (for example 0.25-0.5 mL) and then increase to 1 mL as tolerated
Only a provider can confirm a deficiency, usually with a simple blood test